CCS/MMWAVEICBOOST: Is it possible to activate a GPIO output from Matlab?

binflo

Part Number: MMWAVEICBOOST

Tool/software: Code Composer Studio

Hello,

I would like to know if there is a way to activate the MMWAVEICBOOST GPIO signals from Matlab. If it's possible, how could I do that?

over 5 years ago

0 Yogesh Siraswar over 5 years ago

TI__Mastermind 20805 points

Hello.

I am not sure if I understand your setup. Are you referring to programming of GPIOs on the TI mm-wave device or the GPIOs on the host running the matlab application.

Thanks

Yogesh

0 binflo over 5 years ago in reply to Yogesh Siraswar

Prodigy 140 points

Hi Yogesh,

Tahnk you four your answer.

My idea was just to switch on a LED with the information we get in the Matlab Area Scanner application, as you can see in this video (https://www.youtube.com/watch?v=1w_N1l0FMyw).

First approach was to edit the Matlab program in order to switch on the LED by activating a MMWAVEICBOOST GPIO output.

Finally I have decided to use Python and try to adapt the area scanner demo to Python code. Do you suggest me to continue with this approach? What would you do?

0 Yogesh Siraswar over 5 years ago in reply to binflo

TI__Mastermind 20805 points

Hello,

There will be too much lag if you have to first process the data at host side and then try to send command to configure the GPIO on IWR device.

You can directly modify the area scanner demo to program the GPIO based on tracker output. Something like this in mss_main.c:

if((pGuiMonSel->detectedObjects == 1) && (result->numTargets > 0)) {

/* Point cloud */
tl[tlvIdx].type = MMWDEMO_OUTPUT_MSG_TRACKERPROC_OUTPUT_TARGET_LIST;
tl[tlvIdx].length = sizeof(trackerProc_Target) * result->numTargets;
packetLen += sizeof(MmwDemo_output_message_tl) + tl[tlvIdx].length;
tlvIdx++;
/* Pull-up the GPIO Red */
GPIO_write (gMmwMssMCB.cfg.platformCfg.GPIORed, 1U);

GPIO_write (gMmwMssMCB.cfg.platformCfg.GPIOGreen, 0U);
}
else
{
/* Pull-up the GPIO Green */
GPIO_write (gMmwMssMCB.cfg.platformCfg.GPIOGreen, 1U);

GPIO_write (gMmwMssMCB.cfg.platformCfg.GPIORed, 0U);

}

Please note "GPIOGreen" and "GPIORed" is just for reference.

Thanks

Yogesh

0 binflo over 5 years ago in reply to Yogesh Siraswar

Prodigy 140 points

Hello Yogesh,

Thanks again for the answer. I managed to switch on the GPIO 2 LED every time the sensor detects a person, but now I would like to connect an external LED to the MMWAVEICBOOST. Where can I connect it? Can I use the J5 and J6 on the back? How can I configure it to work?

0 Yogesh Siraswar over 5 years ago in reply to binflo

TI__Mastermind 20805 points

Hello,

Yes you can connect external LED to J5/J6 GPIOs. Please refer to the following mmwaveicboost user guide for switch setting and GPIO:

http://www.ti.com/lit/ug/swru546c/swru546c.pdf

Turn S1.10 to off to get the GPIO signals on J5/J6.

Thanks

Yogesh

0 binflo over 5 years ago in reply to Yogesh Siraswar

Prodigy 140 points

Thank you Yogesh.

One last question. Which is the maximum current that could go through the pins?

0 Yogesh Siraswar over 5 years ago in reply to binflo

TI__Mastermind 20805 points

Hello,

We have not instrumented the same but if you are planning to connect 20mA(MAX) LED, you should be fine.

Thanks

Yogesh

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CCS/MMWAVEICBOOST: Is it possible to activate a GPIO output from Matlab?